Sam can study for hours even though it is very loud and there are many possible distractions in the common room, this is an example of a Focus system.
The focus system is a psychological intervention that is purposely designed for use at home or in lecture halls for cognitive or mental assimilation.
When the focus system takes place, an individual is able to further activate the brain networks to engage in more challenging cognitive activities despite the music, distractions, or noise from the background.
From the information given, the ability for Sam to study for hours even though it is very loud was his ability to activate his Focus System.
Learn more about Cognitive ability here:
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Answer:C. An architectural firm recommending adoption of its building plan
Explanation: Persuasive speaking is a speaking skill which is aimed at ensuring or making your potential audience accepts your views or do what you want him or her to do.
Persuasive speaking is mainly used by sales and marketing professionals who are involved in the sale and Marketing of Products or services.
Other professionals like the architects use it to influence their clients to accept their proposals etc.
Answer:
Explanation:
Given
Distance between two electrons arranged in equilateral triangle geometry is
Potential Energy Between two system
where 
and 
are charges and r is the distance between them
For three Charges Potential Energy is given by
